How to show grub menu after grub update?

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I have 11.10 and Windows 7 in dual boot. Today I tried to update grub and I run the following command in terminal:
sudo fdisk -l
sudo mount /dev/sda6 /mnt
sudo grub-install --root-directory=/mnt /dev/sda
sudo grub-install
After installation and reboot, it does not show the grub menu (from which I can choose which OS to boot) and it directly boots Ubuntu.
Please help.
(HowTos)

Stories similar to How to show grub menu after grub update?

Looks like you are not using Chakra's grub to boot.If you do know that for example, it is Ubuntu's grub and it is still installed there, go to Ubuntu and at terminal, "sudo update-grub" If you don't know, what OS is at the top of the menu?print out that grub's grub.cfg (or menu.lst)as well as fdisk -l and blkid